SY21275DBC -


·       Wide Input Voltage Range: 8.6V ~ 15.9V

·       95% Typical Efficiency

·       Feedback Reference Voltage : 1.25V +/-1.5%

·       500kHz Fixed Switching Frequency

·       Pulse Skipping Mode at Light Load

·       Adjustable Soft-start Time

·       EN ON/OFF Control

·       Over Voltage Protection

·       Cycle-by-cycle Current Limiting Protection

·       Input UVLO

·       Thermal Shutdown with Auto Recovery

·       RoHS Compliant and Halogen Free

·       Compact Package: DFN3x3-10

Typical Application


SY21275 is a high efficiency, current-mode control Boost regulator. The device integrates a low RDS(ON) N-channel MOSFET for high efficiency. The fixed 500kHz switching frequency achieves high efficiency and fast transient response. The external programmable soft start time minimizes the inrush current at start-up.

SY21275 is available in compact DFN3×3-10 package.


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